Coating device

Abstract

The invention provides a coating device capable of counteracting impact. In addition, the invention provides a coating device capable of improving the quality precision of the thickness of a coating film. A coating device (10) is provided with: a coating head (11); a tank (12) for storing the electrode ink supplied to the coating head (11); a pipe (13) that connects the tank (12) and the coating head (11); switching valves (14-1 to 14-4) that, when coating is performed, the delivery destination of the electrode ink delivered from the tank is the coating head (11), and when coating is interrupted, the delivery destination of the electrode ink is the tank; and an even number of back-suction valves (15-1 to 15-4) provided to each of the discharge ports (111-1 to 111-4) of the coating head (11). The plurality of back-suction valves (15-1 to 15-4) are disposed so as to face each other.

Description

Technical Field

[0001] This invention relates to a coating apparatus. Background Technology

[0002] Patent document 1 describes a coating apparatus which employs valve opening and closing technology when supplying ink to a coating head to suppress the generation of air bubbles in the ink and to fill the piping used for supplying ink to the coating head with ink.

[0003] [Existing Technical Documents]

[0004] [Patent Literature]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 2021-171688 Summary of the Invention

[0006] [The problem the invention aims to solve]

[0007] However, if the coating device of Patent Document 1 is used to deal with high-flow coating, the amount extruded will increase, which will inevitably lead to an increase in the back suction force and a greater impact.

[0008] [Methods used to solve problems]

[0009] In one embodiment, the coating apparatus directs the back suction valve toward the front.

[0010] [Invention Effects]

[0011] The coating apparatus disclosed herein can counteract impacts. Furthermore, it can improve the quality and precision of the coated film thickness. Attached Figure Description

[0012] Figure 1 This is a simplified diagram illustrating an example of the coating apparatus of Embodiment 1. Detailed Implementation

[0013] Implementation Method 1

[0014] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. Figure 1 This is a simplified diagram illustrating an example of the coating apparatus according to Embodiment 1. Figure 1 In the process, the coating device 10 includes a coating head 11, a tank 12, a piping 13, a switching valve 14, and a back suction valve 15.

[0015] The coating head 11 has multiple spray nozzles 111-1 to 111-4.

[0016] Tank 12 is a container for storing electrode ink. Furthermore, tank 12 supplies electrode ink to coating head 11 via piping 13.

[0017] Piping 13 connects tank 12 to coating head 11. Figure 1 In this process, the piping 13 branches out to connect from the tank 12 to the spray outlets 111-1 to 111-4 of the coating head 11.

[0018] Switching valves 14-1 to 14-4 are switching valves that send electrode ink from tank 12 to coating head 11, and send electrode ink to tank 12 when coating is interrupted.

[0019] Backflow valves 15-1 to 15-4 are used to introduce liquid into the discharge port and prevent liquid from dripping. Backflow valves 15-1 to 15-4 are arranged opposite to each other. Figure 1 In the middle, back suction valve 15-1 and back suction valve 15-2 face each other. In addition, back suction valve 15-3 and back suction valve 15-4 face each other.

[0020] Thus, according to the coating apparatus of Embodiment 1, by arranging multiple back-suction valves in the piping and aligning them, impacts can be counteracted. As a result, the impact force on the back-suction valves during intermittent coating is mitigated. Furthermore, the quality accuracy of the coating film thickness can be improved.

[0021] Furthermore, the present invention is not limited to the above-described embodiments and can be appropriately modified within the scope of the main idea. For example, the number of back suction valves 15 is not limited to 4, as long as it is an even number, and they can be oriented in opposite directions.

[0022] [Explanation of reference numerals in the attached figures]

[0023] 10 Coating apparatus

[0024] 11 Coating head

[0025] 12 cans

[0026] 13 Piping

[0027] 14-1~14-4 Switching valves

[0028] 15~1~15-4 Back suction valve

[0029] 111-1~111-4 Spray outlet.

Claims

1. A coating apparatus, comprising: Coating head; A container for storing electrode ink supplied to the coating head; Piping connects the tank to the coating head; A switching valve, during coating, directs the electrode ink from the can to the coating head; when coating is interrupted, directs the electrode ink to the can. An even number of back suction valves are provided at each nozzle of the coating head. The plurality of back suction valves are arranged opposite to each other.

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